Fun Fact: During the scene where Nikki Reed's character is piercing Evan's belly, Nikki actually poked Evan's belly with the needle. So when Evan's character screamed, "What the fuck did you do," it was completely unscripted and authentic. She still has the scar to prove it.

What she's been up to: Evan Rachel Wood went on to star in projects like A Case of You, Running With Scissors, Across the Universe, and Westworld.

Fun fact:Thirteen and "Tracy" were loosely based on Nikki Reed's life. She also co-wrote the screenplay in six days with her mother's friend and director, Catherine Hardwicke. And in case you were wondering, Nikki's tongue piercing was real, while Evan's was fake.

What she's been up to: Nikki Reed went on to star in projects like the Twilight movie franchise, Sleepy Hollow, and In Your Eyes.

Fun fact: During the scene where Evan's character Tracy falls to the ground crying and Holly's character Mel kisses her scars, Evan actually blacked out for about 15 minutes because it was so traumatic for her.

What she's been up to: Holly Hunter went on to star in projects like Saving Grace, Top of the Lake, The Incredibles, and The Big Sick.